Blacklists Compared

7 April 2007

Survey results for all known public IP-based DNS blacklists.
Lookups were done on connecting IP addresses.
The "union of most IP zones" line excludes the
exemptions.ahbl.org,
query.bondedsender.org,
list.dnswl.org,
accredit.habeas.com,
iadb.isipp.com, and
iadb2.isipp.com
zones because they are not blacklists.